US4002808A - Electrochemical cell - Google Patents

Electrochemical cell Download PDF

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Publication number
US4002808A
US4002808A US05/550,748 US55074875A US4002808A US 4002808 A US4002808 A US 4002808A US 55074875 A US55074875 A US 55074875A US 4002808 A US4002808 A US 4002808A
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US
United States
Prior art keywords
cell
pin
cell according
terminal
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/550,748
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English (en)
Inventor
Jean Fafa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Industrielle des Piles Electriques CIPEL SA
Original Assignee
Compagnie Industrielle des Piles Electriques CIPEL SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Compagnie Industrielle des Piles Electriques CIPEL SA filed Critical Compagnie Industrielle des Piles Electriques CIPEL SA
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Publication of US4002808A publication Critical patent/US4002808A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/559—Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides of the cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/564—Terminals characterised by their manufacturing process
    • H01M50/566—Terminals characterised by their manufacturing process by welding, soldering or brazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to electrochemical cells and, more particularly, to cylindrical electric cells intended to be electrically connected together in series.
  • Numerous devices require the use of two, three or even, sometimes, four cells placed end to end.
  • the electrical connection is generally provided between cells of a same column by springs placed at the ends of the said column.
  • Such a device has several disadvantages. Indeed, the cells are difficult to put in their place, for they are not well supported laterally; moreover, the end springs, which are often too weak, cause bad electrical contacts between the cells of a same column.
  • German Pat. No. 494,929 describes a cell having two protruding terminals on two opposite faces. These terminals are made in such a way as to be able to co-operate together by screwing, locking, spring catch systems, etc., to ensure simultaneously an electrical and mechanical connection between two identical cells.
  • a cell is a solution for the problem set, it has the disadvantage of not complying, inasmuch as concerns its bulk dimensions, with the recommendations of the International Electrotechnical Commission relating to cells, R6, R14 and R20 (Publication 86-2, third edition, 1972, "Electric cells -- Second part: specifications sheets,” pages 32 to 37).
  • the present invention therefore aims at providing an electrochemical cell which may easily and reliably be connected up in series by alinement end to end, while complying with the recommendations of the IEC and being able to stand vertically.
  • the present invention has as its object an electrochemical cell provided with a casing having two opposite faces and comprising a metal cup, a terminal of a first polarity formed by a protruding pin on one of the said faces and a second terminal of the opposite polarity provided with a socket outside the said cup capable of co-operating with the pin of another cell similar to the said cell so as to connect the two cells electrically and to fasten them together;
  • the said cell is characterized in that the said second terminal has a substantially plane surface constituting a portion of the second of the said faces and that no part of the said socket protrudes from the said surface.
  • the said socket and the said pin co-operate by screwing.
  • the said socket and the said pin co-operate by locking, as by the socket having at least one notch in which at least one stud belonging to the said pin is engaged.
  • the said socket and the said pin co-operate by a spring catch system, such as those of the push-button type.
  • the invention is applied, to great advantage, to a cylindrical cell in which the terminal having the first polarity is constituted by a metal cap covering, for example, the end of a graphite rod belonging to the positive electrode; the second terminal may be constituted by a metal cup or a bottom disk in electrical contact with the negative electrode, comprising, for example a zinc cup.
  • the said pin is formed by an end piece welded on the protruding portion of the said cap and the said socket is formed by a part welded in a recess in the said bottom cup.
  • the socket may be constituted by a disk externally covering the bottom disk or the sealing cup of the cylindrical cell.
  • the pin may also be constituted by the cap itself and the socket may be formed directly in the cup or the bottom disk.
  • FIG. 1 is a diagrammatic perspective view of two electrochemical cells according to the invention which may be connected together by screwing.
  • FIGS. 2a and 2b illustrate very diagrammatically in a partly cutaway view two positions of the two cells in FIG. 1.
  • FIG. 3 illustrates diagrammatically in a perspective view two electrochemical cells intended to be screwed together according to a variant of embodiment.
  • FIG. 4 illustrates diagrammatically a partly cutaway view of the cells in FIG. 3, fixed together.
  • FIG. 5 illustrates diagrammatically a perspective view of two electrochemical cells according to the invention, intended to be locked together.
  • FIG. 6 illustrates diagrammatically a perspective view of two electrochemical cells according to the invention intended to be fixed together by a spring catch system.
  • FIG. 7 illustrates diagrammatically in a partly cutaway view the two cells in FIG. 6 fastened together.
  • FIG. 1 shows a cylindrical cell 10 whose positive terminal 18 projects and whose negative terminal 16 is a metal cup having a portion of plane surface is constituted as shown in FIG. 2a by two superimposed disks 14 and 15 encircled by a seal 13 compressed by the turned-down edges of two superimposed lateral casings, a casing 11 made of plastic material covering the negative electrode 16 of the cell and an outer metal casing 12.
  • the positive terminal 18 of the cell 10 is similar to the terminal 25 of a cell 20 identical to the cell 10; the terminal 25 is a metallic end piece welded to a metal, cap 24 covering, for example, a central conductive rod 26 belonging to the positive electrode.
  • the cap 24 is surrounded on the outside by a seal 23 onto which are turned down the edges of the lateral casings 21 and 22 of the cell 20.
  • the disk 15 has a central orifice intended to co-operate with the threaded end-piece 25.
  • FIG. 2a illustrates the position of the two cells 10 and 20 at the beginning of the screwing
  • FIG. 2b illustrates these two cells at the end of the screwing: the pin constituted by the end piece 25 abutting on the disk 14, the screwing of the pin in the socket causes a deformation of the disk 15.
  • the perimeter of the orifice forming the socket comprises a portion of helix having the same pitch as the pin, or an arc of a circle which may be deformed into a portion of helix by the screwing of the pin.
  • the diameter of that arc of a helix or of a circle corresponds substantially to the diameter of the bottom of the thread of the pin.
  • FIGS. 3 and 4 illustrate two cylindrical cells 30 and 40 also intended to be screwed together.
  • the sealing cup 34 of the cell 30 has, at the level of its central part, a recess intended for accomodating a welded socket 35; the latter is intended to co-operate with a pin constituted by a cap 44 belonging to the cell 40.
  • FIG. 5 illustrates two identical cells 50 and 60 intended to be locked together.
  • the bottom cup 54 of the cell 50 has a central recess in which is accomodated a socket 55 provided with at least one notch 56.
  • the latter is intended to co-operate with a stud 66 provided on a metal pin 65 welded on a cap 64 connected to the positive electrode of the cell 60.
  • Locking is effected by a rotation of the cell 60 in relation to the cell 50.
  • FIGS. 6 and 7 relate to two identical cells 70 and 80 intended to be connected electrically and mechanically by a spring catch system.
  • the bottom disk 74 of the cell 70 has a central recess in which is welded a socket 75 having an elastically deformable notched edge. The latter is intended to co-operate with a pin 85 welded to the positive cap 84 of the cell 80.
  • the pin 85 may have a slightly conical lateral surface force fitted into the socket 75.
  • a similar result may be obtained by a spring catch system of the press-button type.
  • the structure of an electrochemical cell according to the invention makes it possible to effect series connections which are very easy and very safe of several identical cells, the mechanical connection being provided at the same time as the electrical connection.
  • a cell according to the invention comprises accessories necessary for the coupling thereof with an identical cell, it keeps to the overall dimensions recommended by the International Electrotechnical Commission and may be put in contact with any other cell having the same module.
  • the inside diameter of the socket of the negative terminal is chosen larger than the diameter of the positive terminals of existing cells.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)
US05/550,748 1974-02-26 1975-02-18 Electrochemical cell Expired - Lifetime US4002808A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR74.06468 1974-02-26
FR747406468A FR2262415B1 (xx) 1974-02-26 1974-02-26

Publications (1)

Publication Number Publication Date
US4002808A true US4002808A (en) 1977-01-11

Family

ID=9135455

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/550,748 Expired - Lifetime US4002808A (en) 1974-02-26 1975-02-18 Electrochemical cell

Country Status (13)

Country Link
US (1) US4002808A (xx)
JP (1) JPS50119242A (xx)
BE (1) BE825398A (xx)
CA (1) CA1038448A (xx)
DE (1) DE2507806A1 (xx)
DK (1) DK72875A (xx)
FR (1) FR2262415B1 (xx)
GB (1) GB1494396A (xx)
IE (1) IE40691B1 (xx)
IT (1) IT1033156B (xx)
LU (1) LU71832A1 (xx)
NL (1) NL7501857A (xx)
OA (1) OA04854A (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291106A (en) * 1980-05-27 1981-09-22 General Electric Company Battery linkage system
US5173371A (en) * 1991-03-11 1992-12-22 Eveready Battery Company, Inc. Battery to prevent cell reversal
US5489484A (en) * 1993-04-05 1996-02-06 Black & Decker Inc. Battery pack for cordless device
US5659946A (en) * 1994-12-16 1997-08-26 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a multicell battery
US5965292A (en) * 1996-05-22 1999-10-12 Samsung Display Devices Co., Ltd. Battery terminal case
US5998060A (en) * 1997-04-24 1999-12-07 Mcgrady; Carl Snap connection battery system
USRE37092E1 (en) 1993-01-13 2001-03-13 Streamlight, Inc. Flashlight and recharging system therefor
US6248473B1 (en) 1997-07-25 2001-06-19 Eveready Battery Company, Inc. Composite cover for a battery
US6472089B1 (en) 2000-06-13 2002-10-29 Eveready Battery Company, Inc. Bottom cover design for battery with reverse protection
US20060057461A1 (en) * 2004-09-15 2006-03-16 Toyota Jidosha Kabushiki Kaisha Sealed battery and battery pack
US20080008929A1 (en) * 1993-04-05 2008-01-10 Wheeler Dale K Tool system having rechargeable battery pack
US20110305942A1 (en) * 2010-06-10 2011-12-15 Samsung Sdi Co., Ltd. Rechargeable battery pack
US20180309098A1 (en) * 2015-10-14 2018-10-25 E.M.W.Energy Co., Ltd. Air-zinc battery assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4675259A (en) * 1986-02-25 1987-06-23 Halliburton Company Electrical energy package and method of assembly
US5578392A (en) * 1995-02-17 1996-11-26 Japan Storage Battery Co., Ltd. Cylindrical cell, a cell pack, and a cell holder
DE102022112215A1 (de) 2022-05-16 2023-11-16 Man Truck & Bus Se Batteriezellenanordnung, vorzugsweise Batterierundzellenanordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225460A (en) * 1936-02-04 1940-12-17 Burgess Battery Co Battery
US2672498A (en) * 1950-02-28 1954-03-16 Olin Ind Inc Battery
US2864880A (en) * 1954-09-27 1958-12-16 Mallory & Co Inc P R Battery construction and cell therefor
US3089072A (en) * 1958-10-06 1963-05-07 Longworth Scient Instr Company Rechargeable electric battery unit
US3615867A (en) * 1969-07-11 1971-10-26 Esb Inc Method of assembling a battery with intercell connectors
US3748182A (en) * 1972-05-26 1973-07-24 Gen Electric Button type cell casing and sealed button type battery
US3864172A (en) * 1973-05-17 1975-02-04 Rca Corp Battery connecting assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2225460A (en) * 1936-02-04 1940-12-17 Burgess Battery Co Battery
US2672498A (en) * 1950-02-28 1954-03-16 Olin Ind Inc Battery
US2864880A (en) * 1954-09-27 1958-12-16 Mallory & Co Inc P R Battery construction and cell therefor
US3089072A (en) * 1958-10-06 1963-05-07 Longworth Scient Instr Company Rechargeable electric battery unit
US3615867A (en) * 1969-07-11 1971-10-26 Esb Inc Method of assembling a battery with intercell connectors
US3748182A (en) * 1972-05-26 1973-07-24 Gen Electric Button type cell casing and sealed button type battery
US3864172A (en) * 1973-05-17 1975-02-04 Rca Corp Battery connecting assembly

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291106A (en) * 1980-05-27 1981-09-22 General Electric Company Battery linkage system
US5173371A (en) * 1991-03-11 1992-12-22 Eveready Battery Company, Inc. Battery to prevent cell reversal
USRE37092E1 (en) 1993-01-13 2001-03-13 Streamlight, Inc. Flashlight and recharging system therefor
USRE37226E1 (en) * 1993-04-05 2001-06-12 Black & Decker Corporation Battery pack for cordless device
US5489484A (en) * 1993-04-05 1996-02-06 Black & Decker Inc. Battery pack for cordless device
US5620808A (en) * 1993-04-05 1997-04-15 Black & Decker Inc. Battery pack for cordless device
US7550213B2 (en) 1993-04-05 2009-06-23 Black & Decker Inc. Tool system having rechargeable battery pack
US20080008929A1 (en) * 1993-04-05 2008-01-10 Wheeler Dale K Tool system having rechargeable battery pack
US5659946A (en) * 1994-12-16 1997-08-26 Matsushita Electric Industrial Co., Ltd. Method of manufacturing a multicell battery
US5965292A (en) * 1996-05-22 1999-10-12 Samsung Display Devices Co., Ltd. Battery terminal case
US5998060A (en) * 1997-04-24 1999-12-07 Mcgrady; Carl Snap connection battery system
US6248473B1 (en) 1997-07-25 2001-06-19 Eveready Battery Company, Inc. Composite cover for a battery
US6472089B1 (en) 2000-06-13 2002-10-29 Eveready Battery Company, Inc. Bottom cover design for battery with reverse protection
US20060057461A1 (en) * 2004-09-15 2006-03-16 Toyota Jidosha Kabushiki Kaisha Sealed battery and battery pack
US7172832B2 (en) * 2004-09-15 2007-02-06 Toyota Jidosha Kabushiki Kaisha Sealed battery and battery pack
US20110305942A1 (en) * 2010-06-10 2011-12-15 Samsung Sdi Co., Ltd. Rechargeable battery pack
US20180309098A1 (en) * 2015-10-14 2018-10-25 E.M.W.Energy Co., Ltd. Air-zinc battery assembly
US10818893B2 (en) * 2015-10-14 2020-10-27 E.M.W.Energy Co., Ltd. Air-zinc battery assembly

Also Published As

Publication number Publication date
BE825398A (fr) 1975-08-11
JPS50119242A (xx) 1975-09-18
IT1033156B (it) 1979-07-10
FR2262415B1 (xx) 1979-02-09
NL7501857A (nl) 1975-08-28
FR2262415A1 (xx) 1975-09-19
OA04854A (fr) 1980-10-31
LU71832A1 (xx) 1975-12-09
IE40691L (en) 1975-08-26
DK72875A (xx) 1975-10-27
IE40691B1 (en) 1979-08-01
CA1038448A (fr) 1978-09-12
GB1494396A (en) 1977-12-07
DE2507806A1 (de) 1975-08-28

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